Received: by 2002:a25:e74b:0:0:0:0:0 with SMTP id e72csp294426ybh; Wed, 15 Jul 2020 02:05:18 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzCPgYGUxRGy0fqrZaBZNCGpzAmIeNsj1dwVj+7sbxhOUqhjQ+V3vIKB/b6pkZiEJOSfvF0 X-Received: by 2002:a05:6402:1c8f:: with SMTP id cy15mr8656514edb.308.1594803918702; Wed, 15 Jul 2020 02:05:18 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1594803918; cv=none; d=google.com; s=arc-20160816; b=Y19Z7dQqIB3LuytQlg9jSsgND9uy8XCgWbm+hwTjuQ3dZRN92JuwleXfdzTAkOuUhW w4iiIb56gCre+pcNTTUTQsTTNi+inwmtDO6EciQFTpPrC2gi0wEAO4UjkXk5QZOftc0N 0/yx2cCCXcLdEu8ZMUeOJFGOwbYmaBQP+BEFhjgo/JYpJ9cpeAeaclXK7YwISxRUdPe4 heFjMr3q8l3liJgpctLbYq2k0Kc6Tdysvw1UHrK6kKMAuhfL0a9/PB19JlfjupPqrkqD yJK1qNDk1roYPCKH6yG0Rr+0n3Mi6clXoY7oik+7mGU7/xbrVbC+GnP2vlxRtAF9TRsK sXWw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version; bh=2kAaWMwZVt1TtW+VGsV2swIGSOLuHPRWZdlu1mnnD68=; b=KP6JPI8N+L9y1M8ufPKad94uVtOLvU/xwz36r7pL9/aFD9hElUnq96MGd7uNXUVdaz v515SG/WfCaHL/+G2ET4XVQ2Z38LcJMooEtZctjecSUiFjsO75+hthUBDrUmaWzSNSYL mvISUqT+BFRBi/Yttl3PzoOtv8RNyDT0WJiSuiZb2fDoGUAguWQoYAwnvbufXHHvMQfM gvWwem8gnybBDsE6zHOZ7e6ha/+Wo1o7WGdlLF8JK+Jzk56RAEtSPmYAf+1DxOh7amRq ZNk4S9s6MRxMsoBqWOcHuN7NBwEGWKY4x3JLNzGxICWd/2ePiqXCzlG44hILq7jdCxbu nFkw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id z8si787814ejd.290.2020.07.15.02.04.55; Wed, 15 Jul 2020 02:05:18 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726983AbgGOI34 (ORCPT + 99 others); Wed, 15 Jul 2020 04:29:56 -0400 Received: from mail-oo1-f67.google.com ([209.85.161.67]:44168 "EHLO mail-oo1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725885AbgGOI34 (ORCPT ); Wed, 15 Jul 2020 04:29:56 -0400 Received: by mail-oo1-f67.google.com with SMTP id o36so296646ooi.11; Wed, 15 Jul 2020 01:29:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=2kAaWMwZVt1TtW+VGsV2swIGSOLuHPRWZdlu1mnnD68=; b=p9OZ6Iu0jh5WfBQsqaTlVSavALis1LsKKO/xuokFTPGYw2sj9jUnCmzkf0TY7RwWdx YGA64QHn6EWR3qWgyqkzSRLtTDgQXKKcM16q5vpjJUKhJ67NZ9Oy7KIFm9Bx0xkrdiXT IkT9jHq2RtYpCiMiNdajfy9PsX/7ew0vQUJZi6jghMuYPtePh74GTi2V1lHe1z5QvSOA bpjURc7RCQPfPsRAZ/RujLSrdICsXyInOW1eVUCZyQjlDsiS1cnVNrOG0CaYKtm7sU67 QeFL8uB2ISscpisPmu5e5ugyUvz9DTvubey0i1QQ0yoMDt1UHUqkptEmd+MaLICWT4G7 Qhkg== X-Gm-Message-State: AOAM531NT7YaPju+Ar0ahMBwh1wF28C+fHWNh+AaZosIGvEyUHLVTZ2W +xpKeCgigzLNkwgHjeegy2rIRAkPbMUPuFAarBY= X-Received: by 2002:a4a:9552:: with SMTP id n18mr8265150ooi.1.1594801794967; Wed, 15 Jul 2020 01:29:54 -0700 (PDT) MIME-Version: 1.0 References: <20200714161415.3886463-1-christian.brauner@ubuntu.com> <20200714161415.3886463-5-christian.brauner@ubuntu.com> In-Reply-To: <20200714161415.3886463-5-christian.brauner@ubuntu.com> From: Geert Uytterhoeven Date: Wed, 15 Jul 2020 10:29:43 +0200 Message-ID: Subject: Re: [PATCH 3/4] fs: add mount_setattr() To: Christian Brauner Cc: David Howells , Al Viro , Linux FS Devel , Linux Kernel Mailing List , Linux API , Michael Kerrisk , Aleksa Sarai Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 14, 2020 at 6:17 PM Christian Brauner wrote: > This implements the mount_setattr() syscall. While the new mount api > allows to change the properties of a superblock there is currently no > way to change the mount properties of a mount or mount tree using mount > file descriptors which the new mount api is based on. In addition the > old mount api has the restriction that mount options cannot be > applied recursively. This hasn't changed since changing mount options on > a per-mount basis was implemented in [1] and has been a frequent > request. [...] > Signed-off-by: Christian Brauner > arch/m68k/kernel/syscalls/syscall.tbl | 1 + Acked-by: Geert Uytterhoeven Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds